Report Summary

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    Best Practices

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ハイクラスの転職エージェント JAC Recruitment(ジェイ エイ シー リクルートメント)

Page Load Speed

5.2 sec in total

First Response

490 ms

Resources Loaded

4.3 sec

Page Rendered

352 ms screenshot

About Website

Welcome to homepage info - get ready to check JAC Recruitment best content for Japan right away, or after learning these important things about

JAC Recruitment(ジェイ エイ シー リクルートメント)はミドル・ハイクラス人材向けの転職エージェントです。管理職や専門職、グローバル人材に特化した専門のコンサルタントがあなたの転職をサポートします。


Key Findings

We analyzed page load time and found that the first response time was 490 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

490 ms

781 ms


295 ms


297 ms


439 ms

Our browser made a total of 153 requests to load all elements on the main page. We found that 63% of them (96 requests) were addressed to the original, 13% (20 requests) were made to and 5% (7 requests) were made to The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain

Page Optimization Overview & Recommendations

Page size can be reduced by 207.4 kB (26%)

Content Size

799.9 kB

After Optimization

592.5 kB

In fact, the total size of main page is 799.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 502.1 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 41.2 kB

  • Original 56.2 kB
  • After minification 53.1 kB
  • After compression 15.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 41.2 kB or 73% of the original size.

Image Optimization


Potential reduce by 11.8 kB

  • Original 502.1 kB
  • After minification 490.3 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. JAC Recruitment images are well optimized though.

JavaScript Optimization


Potential reduce by 108.6 kB

  • Original 187.6 kB
  • After minification 170.7 kB
  • After compression 79.0 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 108.6 kB or 58% of the original size.

CSS Optimization


Potential reduce by 45.9 kB

  • Original 54.0 kB
  • After minification 38.0 kB
  • After compression 8.1 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. needs all CSS files to be minified and compressed as it can save up to 45.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 69 (48%)

Requests Now


After Optimization


The browser has sent 145 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JAC Recruitment. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

SEO Factors SEO score


Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of JAC Recruitment. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: